It's more likely that the 14 models will get the A15 from the 13 Pro series, so 5 core GPU up from 4. Maybe 6 GB of RAM.
14 Pro series will get A16 with 6/8GB of RAM likely.
There will still be camera improvements and likely a new 5G modem, probably wifi 6e/BT 5.2 this year.
USB C is also a possibility.
The display with no notch on the 14 pro makes sense also, likely a new display unit with a 1Hz mode for always on display.
Right now the only difference between the regular 13 and Pro are: +2 GB so 6 GB of RAM, Stainless stell instead of aluminum, 120Hz display, and a telephoto lens.
We've also heard rumors of price increases so maybe the pro starts at 1099 and gets the new processor every year and the previous year trickles down from here on out.
I personally don't have any issue with this segmentation moving forward. The iPhone chips are already so fast and way ahead of the competition. It's cost effective for apple and provides more upsell features.